/Engine/Source/Editor/UnrealEd/Public/EditorDirectories.h
The different directory identifiers
namespace ELastDirectory { enum Type { UNR, BRUSH, FBX, FBX_ANIM, GENERIC_IMPORT, GENERIC_EXPORT, GENERIC_OPEN, GENERIC_SAVE, MESH_IMPORT_EXPORT, WORLD_ROOT, LEVEL, PROJECT, NEW_ASSET, MAX, } }